Implantation occurs at what stage of zygote?
Correct Answer: Blastocyst
Description: Ans. is 'b' i.e., Blastocyst * The morula after spending about 3 days in the tube enters the uterine cavity via the narrow ostium (1 mm) on the fourth day in the 16-64 cell stage. Blastocyst formation is on the 5th day.* Implantation occurs in the endometrium on the anterior or posterior wall of the body near the fundus on the sixth day following fertilization (corresponding to the 20th day of the menstrual cycle).* The deeper penetration of the human blastocyst is called interstitial implantation, which happens by approximately the 13th day after fertilization.
Category:
Gynaecology & Obstetrics
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now